16. The Chambray Shirt — We suspect that if you paired a lean-cut chambray shirt with absolutely everything in your closet, it would probably match up just fine. Dressed up with a party skirt Check. Dressed down with white chinos and ballet flats? Check. Worn over a bikini at sunset come summertime? Oh, check, check, check. 

Aubin & Wills Ainsworth Shirt, $102.05, available at Aubin & Wills; Old Navy Wester Chambray Shirt, $24, available at Old Navy.